KR920000668B1 - Apparatus for manufacturing curved glass sheets - Google Patents

Abstract

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Description

Curved Glass Manufacturing Equipment

1 is a front view of a curved glass manufacturing apparatus according to the present invention.

FIG. 2: is a top view of the curved glass manufacturing apparatus shown in FIG. 1, and has shown the plate glass conveying apparatus used for the copper apparatus in detail.

3 is a side view of the curved glass manufacturing apparatus seen in the direction of the arrow of FIG.

4 is a partial enlarged view of FIG.

5 is a cross-sectional view taken along the line V-V in FIG.

6A to 6C are schematic plan views of a plurality of conveying plates which continuously show an operating state of the plate glass conveying apparatus shown in FIG. 2.

7 is a schematic plan view showing a modification of the carrier plate.

8 is a schematic plan view showing another modification of the carrier plate.

9 is a perspective view of a carrier plate shown in FIG. 8.

* Explanation of symbols for the main parts of the drawings

G: Plate glass 10: Curved glass manufacturing equipment

24: rail 36: plate glass conveying device

38: inner rail 42: outer rail

46 carrier 48 pulley

80: carrier plate 88: horizontal rail

100: stopper 102: upper box

104: lower mold 108: jet hole

)의 형상에 맞추어서 유리를 정확하게 굽혀 성형할 필요가 있다.The present invention relates to an apparatus for producing curved glass. Curved tempered glass is widely used in window shields of automobiles. In this case, the appearance or window frame of the car (

It is necessary to bend and shape the glass precisely according to the shape of).

In addition, optical distortion, such as disturbing the field of view, should not be present in curved glass after molding. Among the methods for producing curved tempered glass, the most commonly used method currently starts with heating flat plate glass in a furnace to a deformation temperature of the glass, that is, to a softening point.

Subsequently, the plate glass is transferred from heating to a mold using a suitable conveying means, and the plate glass is bent at a desired curvature therefrom. When this bending process is complete | finished, the last curved glass plate is conveyed to a cooling part by the said conveying means, and a suitable refrigerant | coolant is blown out from there, and a glass plate is quenched, ie heated, and cooled. The reason why the plate glass is cooled by heat treatment is to improve the fracture resistance so that even if the plate glass is damaged due to the impact, the fragments are made into relatively small pieces and the surface is smooth so that the occupant is not injured by the glass fragments. It is.

By the way, among the means for conveying the plate glass described above, the most representative is disclosed in US Patent No. 42552552 issued on February 24, 1981 by inventor Robert G. Flenck.

This conveying means is provided in the conveyance direction of glass at equal intervals, and it becomes many conveyance frames which extend in the direction orthogonal to each conveyance direction of glass.

And the plate glass carried out from the heating furnace by the conveyance frame in a heating furnace transfers on the conveyance frame of a bending molding part, and the movement is stopped when conveyed to a metal mold | die after that. When this movement stops, the lower die waiting under the conveying frame is lifted up by an elevator, and its upper surface abuts on the lower surface of the plate glass. The lower mold has a concave molding surface, and a plurality of grooves extending in a direction orthogonal to the conveying direction of the plate glass are formed at the same spacing as the spacing between the conveying frames.

When the lower mold is moved again in the above state, the conveying frame is buried with suction, and as a result, the plate glass is supported only by the upper surface of the lower mold, and the plate glass corresponds to the curved shape of the molding surface of the lower mold by gravity. Is curved.

Subsequently, the plate glass from which the upper mold has been lowered is adsorbed on the lower surface and lifted upward. In this state, the ring mold is carried in between the upper and lower molds, and at the same time, the negative pressure inside the upper mold is released by the negative pressure device, and plate glass, which has been adsorbed on the lower surface of the upper mold, is transferred to the ring mold.

The ring mold has a larger curvature than the upper mold, so that the plate glass is curved with a larger curvature than the other portions. Carrier rollers of the same or similar shape are also disclosed in U.S. Pat.Nos. 3,567,722, 37,82,916, 4,971,108, 4272274, 4,428,15 and 4,430,110.

In the conventional apparatuses listed above, all of the grooves are formed in the lower mold. When the lower mold receives the plate glass frame from the conveying frame, the lower mold is raised or lowered so that the conveying frame is buried in each groove. However, the curved glass manufacturing apparatus having a lower die formed with such a groove is a little difficult to bend and bend to a required curvature because the structure of the lower die itself is complicated, and its manufacturing is cumbersome and only a part of the upper surface, which is the lower die, can be used. Blowing holes used for blowing cooling air on the upper surface of the lower mold cannot be formed at uniform intervals, which results in poor cooling efficiency.

In addition to the above, in the above-mentioned conveyance frame, the position cannot be corrected once glass is received in the heating furnace. For this reason, when plate glass is not correctly transferred to the predetermined position on a conveyance frame in a heating furnace, the plate glass cannot be handed over to the upper surface of a lower mold suitably.

SUMMARY OF THE INVENTION An object of the present invention is to provide a curved glass manufacturing apparatus capable of using a mold having a simple structure, in particular, a lower mold, and at the same time, accurately transferring the plate glass to a predetermined position of the mold, bending the mold at an accurate curvature, and then cooling the plate glass properly. do.

In order to achieve the above object, the present invention provides a plate glass conveying apparatus having a conveying means for conveying the plate glass heated to the softening point in the heating portion and a mold apparatus disposed on the downstream side of the heating portion and bent at a predetermined curvature of the plate glass frame. The apparatus comprises a guide means comprising a moving rail which extends along the conveying direction of the plate glass and moves in a direction crossing the direction, the first position being a position guided by the guide means and the plate glass being taken out from the heating section; And a moving means for moving between the second position, the position where the plate glass is transferred to the mold, wherein the conveying means is supported by the moving means and engages with the moving rail, and the plate glass is removed from the first position. When conveying to the second position and reaching the second position, the plate glass is driven by moving in the direction crossing the conveying direction of the plate glass. In yijaeha provides a curved glass system device.

The guide means may further include a pair of left and right fixed rails installed in parallel with the pair of left and right moving rails. In addition, the transport means is to compare a plurality of left and right pair of conveying plate and each outer end is engaged with the moving rail.

Moreover, you may comprise the conveyance board of the downstream side, and may fix the both ends to the left and right fixed rails, respectively. The carrier plate is affixed with a woven fabric containing aramid fibers or carbon fibers, preferably felt, to prevent scratches on the plate glass.

The moving means is a traveling platform provided with a plurality of carriers connected in a chain shape and a plurality of pulleys supported by a rotating material on the carriers, and the traveling platform moves on a fixed rail. As for a some conveyance board, a traveling board moves on a fixed rail, it moves to the conveyance direction of plate glass, and moves to the direction which interposes from a mold by moving a movable rail in the direction which crosses a direction similarly.

After the conveying plate receives at the first position the plate glass heated to the approximately softening point of the glass in the heating furnace, the traveling table moves on the stationary rail toward the second position. Then, after reaching the second position and moving outward from the fixed rail, the left and right conveying plates also move outwardly, that is, in the opposite direction along the conveying direction of the plate glass.

With the movement of this conveyance plate, after the plate glass of the softened state conveyed is transferred to a mold, glass is bent and shape | molded by desired mold by many molds.

With such a configuration, even when the plate glass is displaced when the conveying plate reaches the second position, the left and right moving rails are moved, that is, the left and right conveying plates are moved to correct the position of the plate glass so that the plate glass is molded. You can fly to the right place.

Moreover, when a plate glass is handed over to a mold, ie, a lower mold | type, a conveyance board and a lower mold | type do not cross | intersect. Therefore, it is not necessary to form the groove | channel etc. which were required for the conventional apparatus in the lower mold | type.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

)(12), (12)와 기대(12), (12)의 상면에 부착한 주프레임(14), (14)를 갖추어서 된다.As shown to FIG. 1 thru | or 3, the curved glass manufacturing apparatus 10 which concerns on this invention is a direction orthogonal to the direction which conveys plate glass G (direction shown by the arrow of FIG. 1 and FIG. 2). Two expectation that we installed apart (

(12), (12) and main frames (14) and (14) attached to the upper surfaces of the bases (12).

Each main frame 14 is composed of a vertical frame member 16 placed on the four corners of the base 12 and a plurality of horizontal frame members 18 interconnecting the four vertical frame members 16. In FIG. 1 of FIG. 14, the main frame 20 is laid again on the left side, that is, the upstream side, and the main frame 14, 14 and the support frame 16 are connected to the stay 22. It is strengthening.

In addition, two rails 24 (only one is shown) are provided on the upper part of the support frame 20, and these rails 24 have a plurality of conveying frames in which the rails 24 are arranged at equal intervals in a rectangular shape in the conveying direction of the plate glass. (26) is supported by the rotation material by inserting the bearing 28. The plurality of conveying frames 26 are connected by inserting a drive chain (not shown) to the motor 30 installed in the support frame 20, and are driven by the motor 30.

The upstream side of the support frame 20 is provided with a tunnel-type heating furnace 32 adjacent to it, and the flat plate glass is heated to its softening point by a suitable heating means while conveying the inside of the heating furnace 32 by the conveyor device 34. .

And the said conveyance frame 26 receives the plate glass G of the softened state carried out from the carrying out opening formed in the side surface of the downstream of the heating furnace 32. And it puts on the conveyance frame 26, and takes it to the plate glass conveyance apparatus 36 which comprises the main part of this invention in the place which conveyed plate glass G again downstream.

The plate glass conveying apparatus 36 has an outer side of the inner rail 38 and the inner rail 38 fixed to the bracket or extension frame 40 protruding from the horizontal frame member 18 of each main frame 14. The rails 42 and 42 are positioned in parallel to each other and are provided with an outer rail 42 which is movable in a direction transverse to the conveying direction of the plate glass G. Both rails 38 and 42 each have a horizontal frame member. It extends in parallel with the member 18 from the downstream end of (18), and when it reaches the upstream end, it curves in a semicircular shape toward the heating furnace 32 side, and the other end is the lower end of the vertical frame member 14 Extend to However, as shown in Fig. 2, each of the outer rails 42 is separated from the rail of the portion extending in the straight line and the rail of the curved portion, so that only the rail of the portion extending in the straight line is the conveying direction of the plate glass G. It is movable in a direction crossing the.

As shown in the drawing of FIG. 4 and FIG. 5, the traveling platform 44 and 44 move back and forth in the conveyance direction of the plate glass G on the left-right inner side rails 38 and 38. As shown to FIG. Each travel table 44 is composed of a plurality of carriers 46 connected in a chain and a plurality of pulleys 48 provided on the carriers 46.

)으로 나타낸 바와 같이 체인(50)으로 각각 연결하고 있다.And the carrier located in the most upstream side and the carrier located in the downstream side is shown by the dashed-dotted line in FIG.

As shown in Fig. 2, the chains 50 are respectively connected.

The chain 50 is engaged with three sprockets 52, 54, and 56. When the sprocket is rotated, the traveling table 44 travels along the inner rail 38. As shown in FIG.

)한 샤프트(58)의 양끝에 고설하고 있다.As most clearly shown in FIG. 2, the set of sprockets 52 and 52 located at the bottom of the three sets of sprockets has a horizontal width between the main frames 14 and 14.

Are installed at both ends of the shaft 58.

)한 스프라켓트(62)와 감속기(64)의 출력축(66)에 고설한 스프라켓트(68)에 구동체인(70)을 권괘(

)하고 있다.On the other hand, the shaft 58 is supported by the rotating material by the number of shafts suitable for the brackets 60, 60 protruding from the base 12, 12, and the shaft 58

The drive chain 70 is wound around the sprocket 62 and the sprocket 68 installed on the output shaft 66 of the reduction gear 64.

)

The reducer 64 arranged in the vicinity of the downstream side of the main frame 14 is connected to the forward / reverse external motor 72, and functions to reduce the rotational speed of the motor 72 to a predetermined speed. .

Thus, when the motor 72 is operated, first, the drive sprocket 68 is rotated, and its rotational force is transmitted to the driven sprocket 62 through the drive chain 70. Subsequently, at the same time as the driven sprocket 62 rotates, the shaft 58 and the lowermost sprocket 52 and 52 are rotated so that the chain 50 rotates and the traveling table 46 is towed and moved by the chain. do.

The many conveyance plates 80 which receive the softened plate glass G carried out by the conveyance frame 26 are a pair of left and right pairs except a conveyance plate of the most downstream side especially as shown in FIG. . Here, only the conveyance plate of one side is demonstrated with reference to the drawings of FIG. 4 and FIG. 5 for simplicity of description.

The metal conveying plate 80 supporting the end of the plate glass G adheres a woven fabric or felt made of aramid fiber, carbon fiber or the like to the surface thereof, and prevents scratches on the plate glass G. The conveyance plate 80 is determined by the shape of the plate glass G in which each length bends and forms.

In the illustrated embodiment, since the width of the central portion of the plate glass G to bend is widest and narrows with both ends of the upstream and downstream sides, the conveying plate 80 has the shortest and the upstream conveying plate near the center. The conveyance plates located at both ends of the side and the downstream side are the longest. Each conveying plate 80 is formed by joining two sheets 80a, 80b of which the ends of each other overlap each other, and the upper plate 80a supports the lower surface of the plate glass G, and the lower plate 80b. Is engaged with the outer rail 42.

This engagement state is as shown in FIG. 5, and the pulley 84 is fixed to the outer end of the upper plate 80a by a rotating material and fixed to the tip of the shaft 82. It is supposed to be harvested into the guide groove 86.

The pair of left and right conveying plates 80 move with each other in the direction transverse to the conveying direction of the plate glass G and outside from the plate glass G when the plate glass G is transferred to the mold described later. do. Movement to the outside of the conveyance plate 80 is a transverse rail which is a guide rail of a short (short) which is a part of the outer rail 42, that is, a rail extending in a straight line, is provided between the horizontal frame members 18 and 18. It is achieved by sliding in the direction apart from the inner rail 38 along the rail 88. As shown in FIG.

Specifically, the lower surfaces of the outer rails 42 are provided with two vertical pieces 42a and 42a spaced apart from each other, and the vertical pieces 42a and 42a engage with the horizontal rails 88 in other words. The outer rail 42 rides on the saddle on the horizontal rail 88.

On the other hand, on each carrier 46 of the travel table 44, two pieces are laid out so as to sandwich the vertical pieces 46a and 46a as guide pieces, and the vertical pieces 46a and 46a. The vertical plate 80c lined up in the guide groove 90 formed by the lower surface of the plate member 80b of the conveying plate 80 is loaded.

Therefore, the outer rail 42 is guided by the horizontal rail 88 while the conveying plate 80 is guided by the guide pieces 46a and 46a of the carrier 46, respectively, and slides outward.

As shown in detail in FIG. 4, the movement of the outer rail 42 is approximately two equilateral sides with a working cylinder 92 with a piston attached to the horizontal frame member 18 of the main frame 14. It is performed by cooperation with the triangular oscillation plate 94.

As for the swinging plate 94, one point 94a is attached to the horizontal frame member 18, and the other point 94b is connected to the front-end | tip of the piston rod 96 by the swinging material. The remaining one point 94c is provided with a rotating roller 98 indicated by a broken line in the drawing, and the roller 98 is provided in a guide rail (not shown) provided on the lower surface of the outer rail 42. It is engaged with the rotating material.

Thus, when the piston rod 96 is extended, the swinging plate 94 rotates to the right as indicated by the arrow about the point 94a. And as the rocking plate 94 rotates in the direction, the outer rail 42 slides outward on the horizontal rail 88, and the conveyance plate 80 also moves outward at the same time.

The conveyance plate located in the most downstream side in the conveyance plate 80 is comprised by the board | plate material of 1 sheet in the Example shown. And the stopper 10 is attached to two places of the upper surface of the conveyance plate, and the plate glass G is positioned.

In the illustrated embodiment, the upper mold 102 and the lower mold 104 use the ring mold 106 when the plate glass G is formed by bending. As shown in FIG. 1 and FIG. 3, the upper mold | type 102 is hollow and the lower surface which is a molding surface has the curved shape which protruded below.

In addition, a plurality of blow holes 108 are formed in a lattice shape of a water flock on the lower surface, and the cooling air is sprayed from the blow holes 108 toward the upper surface of the plate glass G, and the plate glass G after the die-shaped molding is formed. Quench it.

The vertical movement of the upper die 102 is performed by the hydraulic lift 103. The lower die 104 is similarly hollow, and the molded surface is a curved surface whose upper surface has the same curvature as the aforementioned lower surface curvature.

)의 유압식 승강기(114)로 상하로 움직이게 하는 것이며 하형(104)도 함께 상하로 움직인다.In addition, a plurality of blow holes 110 are formed in the upper surface of the lower mold 104 in the same lattice shape of the water flock. The lower mold 104 is placed on the support panel 112, and a plurality of the support panels 112 are provided (

It is to be moved up and down by the hydraulic elevator 114 of) and the lower mold 104 also moves up and down together.

As shown in FIG. 2 and FIG. 3, two conveyance rails 116 which carry the lower mold | type 104 into this apparatus are provided in the conveyance direction of plate glass G. As shown to FIG.

In addition, each conveyance rail 116 accommodates a large number of rollers 118 as a rotating material to facilitate the movement of the support panel 112. The ring mold 106 is used to bend and shape the edge of the pane G, in particular. Therefore, the shape is designed to be almost identical to the outer shape of the plate glass which inevitably bends and forms. As shown in FIGS. 1 and 3, the ring mold 106 is supported by a plurality of struts 118 placed on the support frame 120.

The support frame 120 is composed of four frame members of the front and rear frame 120a and the left and right side frames 120b, and the stone pieces 122 having recesses 124 on the lower surface of the side frame 120b. ) Are installed in a rectangular direction with two spaces between them. On the other hand, a guide rail 126 is provided to protrude the support frame 123 inwardly from each main frame 14 and extend in the transverse direction on its upper surface.

In addition, the guide rail 126 and the intermediate member 128 engaging with both of the recesses 124 of the protrusion piece 122 are provided, and the intermediate member 128 extends in a rectangular direction on the upper surface thereof. A recess 130 of the protrusion piece 122 is engaged with the guide rail 130.

On the other hand, the lower surface is provided with a stone piece 132 extending in the horizontal direction, and the guide rail 126 engages with the concave portion 134 of the stone piece 132. Thus, when the motor 136 for oscillation is driven, the support frame 120 may move in the front, rear, left, and right directions through the gear devices 138 and 140.

Explain the action. First, the motor 72 is operated to rotate the pair of sprockets 52 to the left in FIG. When the sprocket 52 is rotated in the same direction, the chain 50 is rotated to the left in the same direction so that the traveling table 36 is formed on the inner rail 38 on the inner side of the plate glass G in a solid line in the ring mold ( From the " sending and receiving position ", the plate glass G indicated by the broken line is moved to the " waiting position "

When the transfer to the standby position is detected by a suitable detecting means such as a limit switch, when the carrier plate 80 which temporarily stops rotation of the motor 72 is in the standby position, one of the most downstream side is placed on the most downstream side. It is located in the vicinity of the conveyance frame 26 arrange | positioned.

In the meantime, in the heating furnace 32, the flat plate glass is conveyed by the conveyor apparatus 34, heated to about a softening point, and is then conveyed to the conveyance frame 26. As shown in FIG.

And if the plate glass G moved on the conveyance frame 26, and the front end contacted the stopper 100 of the conveyance plate 80 located in the most downstream side by a suitable detection means, such as a limit switch, a motor ( 72) is operated again to rotate the sprocket 52 to the right side opposite to the previous one. In accordance with this rotation of the sprocket 52, the chain 50 is similarly turned to the right and the traveling table 36 is moved toward the original throwing position.

According to this movement, plate glass G is gradually transferred to the conveyance plate 80, and plate glass G is completely spilled on the several conveyance plate 80 as shown in FIG. 6B. Moreover, the rotational speed of the conveyance frame 26 and the travel of the traveling table 36 are made so that the conveyance speed of the plate glass G by the conveyance frame 26 and conveyance speed of the plate glass G by the conveyance plate 80 become the same. The speed should be set to smoothly send and receive from the conveyance frame 26 to the conveyance plate 80.

When the conveyance plate 80 receives the plate glass G completely and moves again on the ring mold 106, the front end of a plate glass will contact two stoppers 101. As shown in FIG.

In addition, this stopper 101 is operated by a hydraulic actuating cylinder (103). And when it comes in contact with the stopper 101, as shown in FIG. 6C, the conveyance board 80 located in the most downstream side will come out of plate glass G. As shown in FIG. In this state, the operation cylinder 92 is operated to rotate the swing plate 94 to the right about the point 94a as shown in FIG. When the outer rail 42 slides on the horizontal rail 88 to the outside due to the rotation of the swinging plate 94, the conveying plate 80 moves in the same way outward and the conveying plate 80 moves from the plate glass G. On the other hand, the pane G is transferred to the ring mold 106.

In the ring mold 106, when the edge of the plate glass G is bent to a desired curvature, the elevator 14 is operated to raise the lower die 104 together with the support plate 112, while the upper die 102 is lifted ( The glass plate G is bent by shaping | molding by 103, and the cooperation of the upper and lower mold | types 102 and 104 is shape | molded. At this time, the height of the position where the molding surfaces of the upper and lower dies 102 and 104 abut each other is the same as the height of the ring mold 106 and the ring mold 106 is operated when the upper and lower dies 102 and 104 are operated. It is desirable to eliminate the need for removal.

When the plate glass G is bent to a desired curvature, the upper and lower dies 102 and 104 are slightly moved in the direction in which they are spaced apart from the plate glass G to support the plate glass G again with only the ring mold 106.

In this state, the cooling air is blown from upper and lower dies 102 and 104 to the upper and lower surfaces of the plate glass G from the blowing holes 108 and 110, and the plate glass G is quenched, heated, and cooled. In the cooling and cooling process, the motor 136 is operated to move the support frame 120 so that the movement trajectory becomes elliptical, and the cooling air can be blown out to the plate glass G to every corner.

Although a preferred embodiment of the present invention has been described above based on the accompanying drawings, of course, the present invention is not limited to the embodiment. Therefore, it will be readily understood by those skilled in the art that various changes are possible without departing from the scope and spirit of the present invention.

For example, as shown in FIG. 7, the downstream downstream conveying plate may consist of a pair of left and right conveying plates 140 and 140 instead of one sheet, and a stopper 142 may be provided on each conveying plate 140. . In addition, as shown in FIG. 8, the most upstream conveyance plate 144 can be made into the same structure as the one of the most downstream conveyance plates, and the whole edge part of the plate glass G can be supported.

Although it may be a horizontal plane with respect to each conveyance board, it will be understood that it is good also as a structure which has the surface curved inward according to the desired curvature of the glass bent and shape | molded so that it may be shown most clearly in FIG.

Claims (10)

The said plate glass in the curved-glass manufacturing apparatus provided with the plate glass conveyance mechanism which has a conveying means for conveying the plate glass heated to the softening point in a heating part, and the mold apparatus arrange | positioned downstream of the said heating part, and bending the said plate glass to a predetermined curvature. The conveying mechanism extends along the conveying direction of the plate glass and at the same time includes a guide rail including a moving rail which is movable in the direction crossing the direction and a position at which the sheet glass is carried out from the heating by being guided to the guide means. And a moving means, which is a moving material, between the first position and the second position, the position where the plate glass is transferred to the mold apparatus, wherein the transport means is supported by the moving means and engages with the moving rail. And convey the plate glass from the first position to the second position and at the same time reach the second position. Curved glass manufacturing apparatus, characterized in that the glass plates by moving in a direction transverse to the conveying direction of the glass to the mold group is yijaeha. The curved glass manufacturing apparatus of claim 1, wherein the conveying means comprises at least a plurality of left and right pairs of transport plates. [Claim 3] The method of claim 2, wherein the guide means further comprises a pair of fixed rails installed in parallel to the inside of the pair of moving rails, and the conveying plate has a left and right fixed rails on the transverse direction of the conveying direction of the plate glass. Curved glass manufacturing apparatus that is a sliding material. The curved glass manufacturing apparatus of claim 3, wherein the moving unit comprises a plurality of carriers connected in a chain shape, and a plurality of pulleys supported by a rotational material on the carriers, and moves on the left and right fixed rails. 5. The curved glass manufacturing apparatus according to claim 4, wherein the pair of left and right conveying plates are provided with stoppers on the left and right conveying plates on the most downstream side, and the downstream edges of the glass are engaged with the stopper. The apparatus of claim 5, wherein the carrier plate has a curved surface having the same curvature as the curvature of the plate glass to be bent and formed. 5. The conveying means according to claim 4, wherein the conveying means has one conveying plate extending between the fixing rails at its most downstream side, and the conveying plate has at least a stopper on which the downstream edge portion of the pane is engaged. Curved glass manufacturing apparatus having one. 8. The curved glass manufacturing apparatus according to claim 7, wherein the conveying means further comprises one conveying plate extending between the left and right fixed rails at the most upstream side thereof. The curved glass manufacturing apparatus of claim 8, wherein the conveying plate has a curved surface having the same curvature as the curvature of the plate glass formed by bending. The curved glass manufacturing apparatus of claim 1, wherein the mold mechanism has an upper and a lower mold having a plurality of cooling air ejection holes, and the lower mold is a moving material such as drawing an elliptic trajectory.

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